Wind direction indicator

ABSTRACT

A wind direction indicator for hunters includes a smoke generator, a housing, an electrical power source, an air pump and a switch all arranged such that the indicator may be actuated by a hunter using a single hand. The smoke generator may be a cartomizer as an example.

This application is a continuation application of U.S. patentapplication Ser. No. 15/786,349, filed Oct. 17, 2017, which is acontinuation of Ser. No. 14/942,098 filed Nov. 16, 2015, the contents ofwhich is herein incorporated by reference in its entirely.

BACKGROUND OF THE INVENTION Field of the Invention

This invention is directed to a portable, hand held device forgenerating smoke which will serve to indicate the wind direction in anoutdoor location.

Background of the Invention

While hunting is it extremely important to position oneself downwind ofthe game being hunted. This is because the game normally has a highlyacute sense of smell and would therefore detect the presence of a humanshould the human be in a position upwind of the game. Various attemptsto provide an indication of the wind direction have not been fullysuccessful. For example, U.S. Pat. No. 4,423,626 discloses a squeezebottle containing a powder for generating a cloud of powder. The problemwith this design is that it is very difficult to control the propercloud dispersion for properly checking wind direction. Also, themovement required to shake the container to dispense the talc powder canspook game. The talc powder being a solid, also does not carry well. Forexample in the mountains where you have thermal updrafts and downdrafts,the talcum powder being a solid will fall, whereas smoke will rise andfall with the drafts. U.S. Pat. No. 3,112,645 discloses a smokegenerator that is attached to a rifle. This is difficult to manipulatein the field since the cap must be screwed and unscrewed each time it isdesired to generate smoke. Also it lacks a positive air flow generatorso that the production of smoke and its release to the atmosphere is notpositively assisted.

Consequently there is a need for a reliable and easy to manipulate smokegenerator for use in hunting and other activities.

BRIEF SUMMARY OF SOME OF THE PREFERRED EMBODIMENTS

These and other needs in the art are addressed in one embodiment by asmoke generator that includes a smoke generator such as a cartomizer forexample positioned within a hand held housing. A finger actuated airpump is positioned on an outside surface of the housing as is a fingeractuated switch. A battery is positioned within the housing to provideelectrical power for a heating element within the cartomizer.

The components are arranged such that the user can operate the devicewith one hand. A thumb of the user's hand can depress the switch toprovide power for heating the smoke producing liquid within thecartomizer.

At the same time the user can actuate the air pump with a trigger fingerto provide a positive flow of air to the cartomizer. The air flow forcesthe smoke to the ambient through an outlet.

BRIEF DESCRIPTION OF THE DRAWINGS

For a detailed description of the preferred embodiments of theinvention, reference will now be made to the accompanying drawings inwhich:

FIG. 1 is a front view of an embodiment of the invention

FIG. 2 is an interior view of the housing of the embodiment shown inFIG. 1.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

As shown in FIG. 1, an embodiment of the invention 10 includes agenerally rectangular housing having a top 6, a bottom 5, sides 3, 4 andan inclined portion 7 of the housing.

An air pump 11 similar to a priming pump for small engines is secured toside 4. A cutout or window section 16 is provided on a front panel 8 ofthe housing and a compass 17 may be secured to the front panel.Additionally a LED light 14 may be mounted on inclined portion 7 of thehousing and connected to switch 13.

FIG. 2 illustrates the interior arrangement of the smoke directionindicator. A battery 28 is suitably mounted within the housing in aknown matter and includes position and negative terminals 31 and 32respectively which are connected to a heating element 24 via switch 13and wires 26, 27.

A pocket 31 is positioned within and fixed to housing 12 for supportinga smoke generator 32 which may take the form of a cartomizer such asthose used in electronic cigarettes, for example. Any well-known smokegenerator may be used. The housing includes a rear wall 18.

An embodiment of the smoke generator includes a housing 21 having acentral air passageway 23 and a fibrous mass 22 which is impregnatedwith a smoke generating liquid, for example a mixture of water and aglycol compound. A masking material may also be added to the mixture formasking human scent and may include natural odors such as pine or cedar.

Housing 21 may be threaded such as at 17 for retention within pocket 32which would have complementary threads at its bottom. Smoke generatoralso includes a heating element 24 positioned within the fibrous mass22. Heating coil 24 includes positive and negative terminals 41, 42which are connected to battery 28 via a known battery connector as isknown in the art.

Air passageway 23 extends through housing 21 at its lower end and isconnected to a conduit 19 which is connected to air pump 11. A huntermay operate pump 11 with a trigger finger to cause air flow throughpassageway 23 which will entrain smoke being generated by the smokegenerator.

In use, a hunter may hold the housing 12 in one hand such that the thumbof the user may be used to close switch 13 while at the same time thehunter can operate air pump 11 with a trigger finger. Thus as smoke isgenerated within the smoke generator by heating of the liquid, air willbe forced through passageway 23 by pump 11 and will entrain the smokeformed within the smoke generator.

It should be noted that while the above description of the invention isin terms of a wind direction indicator for hunters, the device could beused to detect leaks in fluid pressure systems such as air conditioningsystems, or for aiding golfers in determining the wind direction priorto striking the golf ball.

Furthermore, although the smoke generator has been illustrated in thedrawings is being positioned within the housing, in an attentiveembodiment the smoke generator 32 may be threaded in a connector locatedin the top portion 6 of the housing.

What is claimed is:
 1. A wind direction indicator for indicating thedirection of wind in ambient surroundings comprising; a) A firsthousing, b) a smoke generator attached to the first housing, the smokegenerator including a second housing, a heating element, an internal airpassageway having an inlet and an outlet to the ambient, and a fibrousmass impregnated with liquid surrounding the air passageway, c) anon-electric finger operated air pump having an outlet connected to theinternal air passageway input of the smoke generator, and d) a switchconnected to the heating element for energizing the heating element froma power source whereby smoke is discharged into the ambient.
 2. The winddirection indicator of claim 1 wherein the first housing includes aninclined portion between a top and a first side portion, the switchbeing mounted on the inclined portion, and the air pump being mounted ona second side portion, whereby the wind indicator may be actuated by auser's thumb and trigger finger.
 3. The wind direction indicator ofclaim 1 further including a third housing having a pocket positionedwithin the third housing, the smoke generator being removably secured inthe pocket.
 4. The wind direction indicator of claim 1 further includinga light mounted on a top of the first housing for illuminating the smokeas it is generated.
 5. The wind direction indicator of claim 1 furtherincluding a battery connected between the switch and the heatingelement.
 6. The wind direction indicator of claim 1 wherein the air pumpoutlet is connected to the internal air passageway by a conduit.
 7. Thewind direction indicator of claim 3 wherein the third housing has athreaded portion in a bottom portion thereof, and the second housing hasa threaded portion on an exterior surface thereof adapted to mate withthe threaded portion of the third housing.
 8. A wind direction indicatorfor indicating the direction of wind in ambient surroundings comprising;a) a smoke generator attached to a first housing, the smoke generatorincluding a second housing a heating element, an internal air passagewayhaving an inlet and a terminal outlet, and a fibrous mass impregnatedwith liquid surrounding the air passageway, b) a non-electric fingeroperated air pump for introducing air into the inlet of the airpassageway, and c) a switch connected to the heating element forenergizing the heating element from a power source whereby smoke isdischarged from the outlet of the internal air passageway into theambient.